OBJECTIVE LENS DRIVE, OPTICAL PICKUP USING THE SAME, AND OPTICAL RECORDING/REPRODUCING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a further miniaturized objective lens drive while securing the drive performance of an objective lens.;SOLUTION: A circular hole 41 for passing a laser beam is provided at a center from the upper surface to the lower surface of a lens holder 32, and an objective lens 25 is stuck to the upper portion. A tracking coil storage hole 42 storing a tracking coil 43 is formed on both the sides of the objective lens 25. Two tracking coils 43 are provided in one tracking coil storage hole 42. An inner yoke 31c is inserted into the tracking coil storage hole 42. The tracking coil 43 is in a shape where the upper and lower ends of a coil wound nearly in a rectangular shape are bent.;COPYRIGHT: (C)2008,JPO&INPIT